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Goodwill and Other Intangible Assets | 3 Months Ended
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Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Other Intangible Assets | Goodwill and Other Intangible Assets Changes in the carrying amount of goodwill were as follows ($000):
| Three Months Ended September 30, 2024
| Networking |  | Materials |  | Lasers |  | Total
Balance-beginning of period | $ | 1,036,592 |  |  | $ | 245,983 |  |  | $ | 3,181,754 |  |  | $ | 4,464,329 |
Foreign currency translation | 1,900 |  |  | 2,778 |  |  | 126,636 |  |  | 131,314 |
Balance-end of period | $ | 1,038,492 |  |  | $ | 248,761 |  |  | $ | 3,308,390 |  |  | $ | 4,595,643 |
We test goodwill for impairment annually during the fourth quarter, or more frequently when events or changes in circumstances indicate that fair value is below carrying value. The gross carrying amount and accumulated amortization of our intangible assets other than goodwill were as follows ($000):
| September 30, 2024 |  | June 30, 2024
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Book Value |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Book Value
Technology | $ | 1,685,122 |  |  | $ | (430,328) |  |  | $ | 1,254,794 |  |  | $ | 1,653,289 |  |  | $ | (394,040) |  |  | $ | 1,259,249 |
Trade Names | 438,470 |  |  | (8,470) |  |  | 430,000 |  |  | 438,470 |  |  | (8,470) |  |  | 430,000 |
Customer Lists | 2,377,951 |  |  | (549,878) |  |  | 1,828,073 |  |  | 2,310,550 |  |  | (498,252) |  |  | 1,812,298 |
Backlog and Other | 91,732 |  |  | (89,912) |  |  | 1,820 |  |  | 88,792 |  |  | (87,092) |  |  | 1,700 |
Total | $ | 4,593,275 |  |  | $ | (1,078,588) |  |  | $ | 3,514,687 |  |  | $ | 4,491,101 |  |  | $ | (987,854) |  |  | $ | 3,503,247 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-30/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-20/tableOfContent + Details
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